The Burst Cutting Area (BCA) is an annular area within the disc hub where a bar code can be written for additional information such as serial numbers. The BCA can be written during mastering and will be common for all discs from that master or, more usually, will be written using a YAG laser to 'cut' the barcode into the aluminium reflective layer of the finished disc.

The data stored in the BCA can be from 12 bytes to 188 bytes in steps of 16 bytes. The ill-fated Divx format used BCA to uniquely identify every disc. New uses of this or similar technologies are being developed to use the BCA as a unique, tamper-proof means of identifying individual discs.

Hi Gradius and welcome to our forum, probably since rpc1.org email server needs authorization before accept your messages, it returned back to our email server and somewhere around there lost...Nicw could use your information and add this to a newer DVDInfoPro version

About media icon and the equivalent for "Read blocks from media", or in "read dvd struct commands" ?

Cya, Gradius

Sorry Gradius I have just been so busy with work, I have not had the time to be here too. The media info is made up of many commands, and data being read from everywhere. If I knew which specific lines you are referring to I can check over my code again, lots of this was written donkeys ago.

the barcode stuff is great, and I look forward to getting some time to look at it.

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Cheers NicW

Rudyard Kipling wrote: If you can keep your head when all about you are losing theirs and blaming it on you....If you can bear to hear the truth you've spoken twisted by knaves to make a trap for fools